html,
body,
div,
span,
applet,
object,
iframe,
h1,
h2,
h3,
h4,
h5,
h6,
p,
blockquote,
pre,
a,
abbr,
acronym,
address,
big,
cite,
code,
del,
dfn,
em,
img,
ins,
kbd,
q,
s,
samp,
small,
strike,
strong,
sub,
sup,
tt,
var,
b,
u,
i,
center,
dl,
dt,
dd,
ol,
ul,
li,
fieldset,
form,
label,
legend,
table,
caption,
tbody,
tfoot,
thead,
tr,
th,
td,
article,
aside,
canvas,
details,
embed,
figure,
figcaption,
footer,
header,
hgroup,
menu,
nav,
output,
ruby,
section,
summary,
time,
mark,
audio,
video {
    margin: 0;
    padding: 0;
    border: 0;
    vertical-align: baseline;
    box-sizing: border-box;
    font-family: Helvetica, "PingFang SC","Microsoft Yahei",sans-serif;
}

html,body{
  width:100%;
  height: 100%;
  font-size: 14px;
}
input:focus,
input:active,
button:focus {
    outline: none;
    outline-offset: 0;
}
img{
  width: 100%;
}
:root{
  --primary-color:#ff434f;
  --secondary-color:#e3e3e3;
  --text-color-lightest:#e7e9ec;
  --text-color-darker:#2e2e2e;
  --text-color-dark:#494949;
  --text-color-gray:#8b8b8b;
  --text-color-dary-gray:#727272;
  --text-color-light-gary:#c6c6c6;
  --backdrop-color:rgba(42,42,42,.69);
}

/* header css */
.header {
  width: 100%;
  height: 80px;
  display: grid;
  padding: 0 40px;
  
  grid-template-columns: 1fr 2fr;
  align-items: center;
  position: relative;
  z-index: 200;
  color: var(--text-color-lightest);
}
.logo{
  font-size: 24px;
  font-weight: 600;
  
}
.header nav{
  justify-self: end;
}
.header nav a{
  margin: 0 24px;
  font-size: 20px;
  text-decoration: none;
  color: var(--text-color-lightest);
}
.burger{
  display: none;
}
header.sticky{
  position: fixed;
  background-color: #fff;
  box-shadow: 0 0 18px rgba(0,0,0,.2);
  animation: dropDown 0.5s ease-in-out forwards;
}
header.sticky .logo,
header.sticky nav a,
header.sticky nav i
{
color: var(--text-color-darker);
}

@keyframes dropDown{
  from{
    transform: translateY(-100px);
  }
  to{
    transform: translateY(0);
  }
}
/* 轮播图 css */
.glide{
  position: relative;
  top:-80px;
  z-index:50;
}
.glide__slide img,
.glide__slide video{
  width: 100vw;
  height: 100vh;
  object-fit: cover;
}
.glide__slide{
  display: flex;
  justify-content: center;
  align-items: center;
}
.glide__slide .slide_caption{
  position: absolute;
  z-index: 70;
  color: var(--text-color-lightest);
  text-align: center;
  max-width: 60vw;
}
.glide__slide .left{
  max-width: 80vw;
  text-align: left;
}
.slide_caption h3{
  font-size: 40px;
  font-weight: 600;
}
.slide_caption p{
  font-size: 24px;
  margin: 48px 0;
}
.slide_caption > *{
  opacity: 0;
}
.drop{
  position: absolute;
  top:0;
  left:0;
  width: 100%;
  height: 100%;
  background: var(--backdrop-color);
  z-index: 60;
  opacity: 0.5;
}
.explore_btn{
  padding: 14px 32px;
  border: 0;
  border-radius: 4px;
  font-size: 18px;
  color: var(--text-color-lightest);
  outline: none;
  background: var(--primary-color);
  cursor: pointer;
}

/* 内容区域 */
/* 通用样式 */
.content-wrap{
  display: flex;
  justify-content: center;
  align-items: center;
  flex-direction: column;
}
section{
  display: grid;
  justify-items: center;
  max-width: 1180px;
  padding: 0 80px;
  box-sizing: border-box;
}
.section-bg{
  position: relative;
}
.section-bg::after{
  content:"";
  display: block;
  position: absolute;
  background:#f9fbfb;
  width: 100%;
  height: 100%;
  z-index: -1;
}
section .title{
  font-size: 34px;
  color: var(--text-color-darker);
}
section .title::after{
  content: "";
  display: block;
  width: 80%;
  height: 4px;
  background: var(--primary-color);
  transform: translateX(10%);
  margin-top: 14px;
}
section .intro{
  margin: 28px 0 60px 0;
  font-size: 18px;
  color: var(--text-color-dary-gray);
}

/* 关于我们 */
.about{
  padding-bottom: 32px;
}
.features{
  display: grid;
  grid-template-columns: repeat(3,1fr);
  grid-template-rows: 126px 126px;
  column-gap: 5vw;
}
.feature{
  display: grid;
  grid-template-areas: 
   "icon title"
   "icon content";
  grid-template-columns: 60px 1fr;
  grid-template-rows: 1fr 3fr;
}
.features i.fas{
  font-size: 34px;
  color: var(--primary-color);
  grid-area: icon;
}
.features .fea-title{
  grid-area: title;
  font-size: 18px;
  color: var(--text-color-darker);
}
.features .fea-content{
  grid-area: content;
  font-size: 16px;
  margin-top: 8px;
  color: var(--text-color-gray);
}

/* 成功案例 */
.showcase{
  width: 100%;
  max-width: unset;
  padding:72px 0 0;
}
.filter-btn{
  margin-top: 54px;
  margin-bottom: 38px;
}
.btn{
  font-size: 20px;
  margin: 0 7px;
  border: 0;
  padding: 8px 18px;
  border-radius:4px;
  color: var(--text-color-dary-gray);
  background-color: var(--secondary-color);
  cursor: pointer;
  transition: 0.4;
}
.btn.active,.btn:hover{
  background-color: var(--primary-color);
  color: #fff;
}
.showcase .cases{
  width: 100%;
}
.cases .case-item{
  width: 25%;
  height: 18vw;
  overflow: hidden;
}
.case-item img{
  height: 100%;
  object-fit: cover;
}

/* 服务流程 */
.services{
  margin-top:131px;
}
.service{
  display: grid;
  grid-template-columns: repeat(3,1fr);
  grid-template-rows: 1fr 1fr;
  column-gap: 38px;
  row-gap: 34px;
}
.service-item{
  display: grid;
  grid-template-areas: 
  "icon title"
  "icon content";
  grid-template-columns: 70px 1fr;
  grid-template-rows: 1fr 3fr;
  padding: 24px;
  box-shadow: 0 0 18px rgba(0,0,0,.06);
}
.service-item i.fas{
  grid-area: icon;
  font-size: 42px;
  color: var(--primary-color);
  padding-top: 6px;
}
.service-item .service-title{
  grid-area: title;
  font-size: 24px;
  color: var(--text-color-darker);
}
.service-item .service-content{
  grid-area: content;
  font-size: 16px;
  line-height: 30px;
  margin-top: 8px;
  color: var(--text-color-gray);
}
/* 团队介绍 */
.team{
  margin-top: 48px;
  padding-top: 62px;
  padding-bottom: 52px;
  width: 100%;
  max-width: unset;
}

.team-members{
  max-width: 1069px;
  display: grid;
  grid-template-columns: repeat(4,1fr);
  column-gap: 24px;
  margin-top: 86px;
}
.team-member{
  text-align: center;
  background-color: #fff;
  box-shadow: 0 0 24px rgba(0,0,0,.2);
  padding-bottom: 28px;
  transition: 0.4s;
}
.profile-image{
  overflow: hidden;
}
.profile-image img{
  width: 100%;
  height: 264px;
  object-fit: cover;
  object-position: top center;
}
.team-member .name{
  margin-top: 18px;
  font-size: 18px;
  font-weight: 600;
  color: var(--text-color-dark);
}
.team-member .position{
  color: var(--text-color-dary-gray);
  margin: 12px 0 18px;
}
.social-links{
  width: 100%;
  display: flex;
  justify-content: space-between;
  padding: 0 42px;
}
.social-links a{
  color:var(--text-color-dark);
  font-size: 20px;
}
.team-member:hover{
  transform: translateY(-20px) scale(1.05);
  box-shadow: 0 0 36px rgba(0,0,0,.1);
}

/* 数据 */
.data{
  width: 100%;
  max-width: unset;
  height: 225px;
  background-image: url(../images/adult-business-computer-contemporary-380769.jpg);
  background-size: cover;
  background-position: center;

  display: grid;
  grid-template-columns: repeat(4,minmax(auto,220px));
  justify-content: center;
  align-items: center;
  position: relative;
  z-index: 20;
}
.data::after{
  content: "";
  position: absolute;
  width: 100%;
  height: 100%;
  background-color: var(--backdrop-color);
  z-index: 30;
}
.data-piece{
  color: #fff;
  z-index: 70;
  text-align: center;
}
.data-piece i.fas{
  font-size: 44px;
}
.data-piece .num{
  margin-top: 7px;
  font-size: 41px;
  font-weight: 600;
}
.data-piece .desc{
  font-size: 18px;
  font-weight: 500;
}

/* 公司动态 */
.company{
  margin-top: 88px;
}
.activities{
  display: grid;
  grid-template-columns: repeat(3,1fr);
  column-gap: 24px;
}
.activity{
  padding: 24px;
  transition: 0.4s;
  box-shadow: 0 0 24px rgba(0,0,0,.1);
}
.image-wrap{
  height: 225px;
  overflow: hidden;
  margin: -24px;
  margin-bottom: 0;
}
.image-wrap img{
  min-height: 300px;
  object-fit: cover;
}
.activity .meta{
  margin-top: 20px;
  margin-bottom: 12px;
  color: var(--text-color-light-gary);
  font-size: 12px;
  display: flex;
}
.activity .meta>p:last-child{
  margin-left: 16px;
}
.act-title{
  color: var(--text-color-dark);
  font-size:18px ;
  margin-bottom: 16px;
}
.activity article{
  color: var(--text-color-gray);
  letter-spacing: 0.54px;
  line-height: 24px;
}
.read-more{
  border: 0;
  color: #fff;
  background-color: var(--primary-color);
  border-radius: 4px;
  padding: 6px 14px;
  margin-top: 24px;
}
.activity:hover{
  transform: translateY(-20px) scale(1.05);
  box-shadow: 0 0 36px rgba(0,0,0,.1);
}

footer{
  margin-top: 124px;
  background-color: #181818;
  display: grid;
  justify-items: center;
  padding-top: 72px;
  padding-bottom: 24px;
}
.footer-menus{
  width: 100%;
  max-width: 1180px;
  display: grid;
  grid-template-columns: 2fr repeat(4,1fr);
  padding: 0 80px;
  position: relative;
}
.menu-title{
  font-size: 16px;
  color: #fff;
  font-weight: 500;
  margin-bottom: 20px;
}
.contact-us{
  justify-self: start;
  color: var(--text-color-lightest);
}
.contact-us p:not(:first-child){
  padding-bottom: 16px;
}
.menu-items li{
  list-style: none;
  padding-bottom: 8px;
}
.menu-items li a{
  text-decoration: none;
  font-weight: 300;
  color: var(--text-color-lightest);
}
.icp-info{
  margin-top: 24px;
  margin-bottom: 16px;
}
.icp-info,.rights{
  grid-column: 1/-1;
  justify-self: center;
  color: #fff;
}
.scorllToTop{
  display: none;
  position: relative;
  z-index: 999;
}
.scorllToTop a{
  width: 32px;
  height: 32px;
  border-radius:4px ;
  display: flex;
  justify-content: center;
  align-items: center;
  color: #fff;
  background-color: var(--primary-color);
  text-decoration: none;
  position: fixed; 
  bottom: 60px;
  right: 30px;
}
@media (max-width:1100px){
  .header{
    grid-template-columns: repeat(2,1fr);
  }
  header nav{
    display: none;
  }
  .burger{
    display: block;
    width: 20px;
    height:6px;
    position: relative;
    justify-self: end;
    cursor: pointer;
    
  }
  .burger-line1,.burger-line2,.burger-line3{
    width: 20px;
    height: 2px;
    background-color: var(--text-color-lightest)
  }
  .burger-line1{
    position: absolute;
    top: -6px;
  }
  .burger-line3{
    position: absolute;
    top: 6px;
  }
  header.open nav{
    display: grid;
    position: absolute;
    left: 0;
    top: 0;
    width: 100%;
    height: 100vh;
    background-color: #fff;
    grid-auto-rows: max-content;
    justify-items: end;
    padding: 0 40px;
    opacity: 0;
    animation: slideDown .6s ease-out forwards;
  }
  header.open nav>*{
    color: var(--text-color-darker);
    animation: showMenu .5s linear forwards;
    font-size: 18px;
    margin: 10px 0;
    opacity: 0;
  }
  header.open nav>i.fas{
    margin-top: 20px;
  }
  header.open .burger-line1,header.open .burger-line2,header.open .burger-line3, header.sticky .burger-line1,header.sticky .burger-line2,header.sticky .burger-line3{
    background-color: var(--text-color-darker);
    transition: .4s ease;
  }
  header.open .burger-line1{
    transform: rotate(45deg) translate(3px,5px);
  }
  header.open .burger-line2{
    transform: translateX(5px);
    opacity: 0;
  }
  header.open .burger-line3{
    transform: rotate(-45deg) translate(3px,-5px);
  }
  header.open .logo{
    z-index: 40;
    color: var(--text-color-darker);
  }

  @keyframes slideDown {
    from{
      height: 0;
      opacity: 0;
    }
    to{
      height: 100vh;
      opacity: 1;
      padding-top: 80px;
    }
  }
  @keyframes showMenu {
    from{
      opacity: 0;
      transform: translateY(-1vh);
    }
    to{
      opacity: 1;
      transform: translateY(0);
    }
  }
  .service-item .service-title{
    font-size: 20px;
  }
  .service-item .service-content{
    font-size: 14px;
    line-height: 24px;
  }
  .team-members{
    grid-template-columns: repeat(2,1fr);
    row-gap: 36px;
    column-gap:6vw ;
  }
  .activities{
    grid-template-columns: repeat(2,1fr);
    row-gap: 36px;
  }
}
@media(max-width:992px){
  .slide_caption h3{
    font-size:30px;
  }
  .slide_caption p{
    font-size:18px;
  }
  .features,.service{
    grid-template-columns: repeat(2,1fr);
    grid-template-rows: unset;
  }
  .data{
    height: auto;
    grid-template-columns: repeat(2,minmax(200px ,auto));
    padding: 24px 0;
    row-gap: 24px;
    background-size: 200%;
  }
  .showcase .case-item{
    width: calc(100vw / 3);
  }
}
@media(max-width:768px){
  section{
    padding: 0 30px;
  }
  .glide__slide .left {
    margin: 0 90px;
}
  section .footer-menus{
    padding: 0 40px;
  }
  .footer-menus{
    grid-template-columns: 2fr repeat(2 ,1fr);
    row-gap: 24px;
  }
  .contact-us{
    grid-row: 1/3;
  }
  .footer-menu{
    text-align: right;
  }
  .activities{
    grid-template-columns: 1fr;
    row-gap: 36px;
  }
  .data{
    grid-template-columns: 1fr;
    background-size: 300%;
  }
  .team-members{
    grid-template-columns: minmax(200px,400px);
  }
  .features,.service{
    grid-template-columns: 1fr;
  }
  .showcase .case-item{
    width: calc(100vw / 2);
    height: 30vw;
  }
  .btn {
    margin: 0;
  }
}
@media(max-width:576px){
  
  .slide_caption h3{
    font-size:24px;
  }
  .slide_caption p{
    font-size:14px;
  }
  .glide__arrow--left {
    left: 1em;
  }
  .glide__arrow--right {
    right: 1em;
  }
  .glide__arrow{
    padding:3px 4px;
  }
  .explore_btn{
    padding:4px 8px ;
  }
  .showcase .case-item{
    width: 100vw ;
    height: 60vw;
  }
  .footer-menus{
    grid-template-columns: 1fr;
  }
  .footer-menu{
    justify-self: start;
    text-align: left;
  }
}